#66EFF9#66EFF9
#66EFF9 is a very light, moderate teal. Relative luminance 0.714; OKLCH L 88.1% C 0.119 H 201.9°. Best body text is #000000 at 15.28:1 contrast (WCAG AA passes).
Color values
| HEX | #66EFF9 |
|---|---|
| RGB | rgb(102, 239, 249) |
| HSL | hsl(184, 92%, 69%) |
| HSV | hsv(184, 59%, 98%) |
| CMYK | cmyk(59%, 4%, 0%, 2.4%) |
| CIE-LAB | lab(87.67, -34.20, -16.02) |
| CIE-LCH | lch(87.67, 37.77, 205.10°) |
| OKLab | oklab(88.07% -0.1104 -0.0443) |
| OKLCH | oklch(88.07% 0.119 201.9) |
| XYZ | xyz(53.4376, 71.3918, 100.5680) |
| Luminance | 0.7140 (WCAG relative) |
| Temperature | cool |
| Family | teal |
Closest named colors
Robin'S Egg
#6DEDFD
ΔE00 2.33
Robin Egg Blue
#8AF1FE
ΔE00 3.56
Bright Light Blue
#26F7FD
ΔE00 3.84
Robin'S Egg Blue
#98EFF9
ΔE00 4.77
Bright Cyan
#41FDFE
ΔE00 5.00
Aqua
#00FFFF
ΔE00 6.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66EFF9 #F97066
analogous
#66F9BA #66EFF9 #66A6F9
triadic
#66EFF9 #F966EF #EFF966
tetradic
#66EFF9 #BA66F9 #F97066 #A6F966
square
#66EFF9 #BA66F9 #F97066 #A6F966
split-complementary
#66EFF9 #F966A6 #F9BA66
monochromatic
#09CEDC #2BE9F7 #66EFF9 #A1F5FB #DCFBFE
Accessibility & contrast
On white
1.37
#66EFF9 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
15.28
#66EFF9 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #66EFF9
15.28:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66EFF9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##66EFF9 | 1.00 | 1.37 | 15.28 | 15.28 |
| #FFFFFF | 1.37 | 1.00 | 21.00 | 21.00 |
| #000000 | 15.28 | 21.00 | 1.00 | 1.00 |
| ##000000 | 15.28 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#DFE6FA
Deuteranopia (green-blind)
#C8D5FA
Tritanopia (blue-blind)
#00F7F2
Achromatopsia (no color)
#DCDCDC
Design tokens & code
CSS
--color: #66eff9; /* rgb */ color: rgb(102, 239, 249); /* oklch */ color: oklch(88.1% 0.119 201.9);
Tailwind
colors: {
custom: {
50: '#a0f4fb',
500: '#66eff9',
950: '#000000',
},
}SCSS
$custom: #66eff9; $custom-light: #a0f4fb; $custom-dark: #000000;
JSON
{
"hex": "#66eff9",
"rgb": {
"r": 102,
"g": 239,
"b": 249
},
"hsl": {
"h": 184.082,
"s": 92.453,
"l": 68.824
},
"oklch": {
"l": 0.88073,
"c": 0.11898,
"h": 201.9
},
"luminance": 0.71397
}Semantic roles & 50–950 ramp
primary
#66EFF9
secondary
#D33B30
accent
#1000E6
background
#FDFFFF
surface
#F7FEFF
border
#D0D6D7
text
#101717
muted
#818585